Diesel Boxer

Couldn't find anything on here using search so I figured I would start a chat about the diesel powered boxer(which we sadly can't get).

This link was posted at one time: http://www.boxerdiesel.com

They talk about the design troubles they originally encounter. Being told that the boxer design wasn't right for diesel in a few ways:

Structural

Size

Tendency of piston bore & stroke

Weight of a normal diesel

When the numbers were actually done they found that the boxer design could handle the forces a diesel creates and it actually eliminates certain elements of a traditional diesel, balancing shafts. The weight is no problem because a boxer engine sits low. The piston/combustion chamber problem would have to be figured out.

What does the diesel get for special parts?

It has a common rail fuel system, a turbocharger with variable nozzles, and a particulate filter.

Is it better then a traditional diesel?

In many ways:

Less noise and vibration

Lighter

Doesn't stall violently

Smooth power

And that is just what you can get from reading the article.

I am personally a fan of diesel engines as many know. Will this ever be legal in the US?

I highly doubt it. If it does it will be a restricted and underpowered version that has "low" emissions. When the government looks at emissions it generally isn't to do with how much goes in the cylinder as what comes out. I mentioned specific fuel consumption. Those who put a larger turbocharger on their car and gain say 20 hp and lose a mpg on average are using a little more fuel to get a bit more power. With proper tuning the fuel consumption to power ratio can be lowered. It may seem like you are using more fuel but that all goes to driving habits.

Also I doubt the big oil companies want us to get the better fuel economy and still be able to have fun.

Did I mention that diesels are easily upgraded and can make huge power with nitrous oxide, remapped fuel injection curves, and different injectors.

 
I don't understand why subaru used those weird asymmetrical rods on the diesel. Maybe you have some insight?

They first used them on the ez36 so they could stroke it and not have the rod hit the crank case, now the FB motors use it, and finally the diesel??? Why use these weaker rods?

 
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I don't give a POOP if they come to the states main stream, I just want one under my hood
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Import one from europe. I knew of a guy that had the vw diesel boxer in his vanagon. He had to import that

 
Alright, the rods, exactly what they were used for in the ez36, more stroke. Diesel engines need the longer stroke to build the compression. Diesel: 86 mm, Gas: 65 mm. Weaker? I don't know, all I really know about the rods is the largest reason they are used on other engines is for easier removal of the piston and rod. Maybe they could look into a fork and blade setup and shorten the engine a little bit.

The injection system? Were you saying common rail was cummins or did I miss that in the article?

 
Cummins developed and invented the common rail system. I work on diesel generators so I know a little bit.

 
They may have spent a lot of time developing it for their use over the years, but they did not invent it. In fact, pretty much every passenger vehicle diesel is common rail. Even the VW TDi.

 
Well I know many of you put shame on wikipedia but here is a link.'

http://en.wikipedia.org/wiki/Common_rail

Common rail is new to the shipping industry as far as main propulsion. Wärtsilä produces the largest reciprocating engine and it has no camshaft.

For a diesel boxer I feel like common rail is the only way they could go because adding a fuel cam with high pressure pumps would rob a lot of power.

 
The Cummins uses one cam for intake, exhaust and injector. But if they uses electronic injection to time it rather than mechanical, you wouldn't need to worry about a cam.

 
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